http://www.meetup.com/Taiwan-R

https://en.wikipedia.org/wiki/Waveform

Fourier series https://en.wikipedia.org/wiki/Square_wave https://en.wikipedia.org/wiki/Fourier_series https://commons.wikimedia.org/wiki/File:Fourier_series_square_wave_circles_animation.gif

Frequency,

or its inverse, the Wavelength

https://en.wikipedia.org/wiki/Sound

Frequency, or its inverse, the Wavelength

Amplitude

https://en.wikipedia.org/wiki/Sound

Frequency, or the Wavelength

Amplitude

Sound pressure / Intensity

http://exp.rockfon.com/performance/acoustics/what+determines+room+acoustics-c7-/sound+pressure+level

Frequency, or the Wavelength

Amplitude

Sound pressure / Intensity

Speed of sound = 340.29 m/s

http://physics.stackexchange.com/questions/142098/speed-of-sound-and-break-the-sound-barrier

Frequency, or the Wavelength

Amplitude

Sound pressure / Intensity

Speed of sound

Direction

http://www.illusonic.com/dereverberation/

http://www.tpuser.idv.tw/wp/?p=1030

https://www.stat.auckland.ac.nz/S-Workshop/

https://en.wikipedia.org/wiki/R_(programming_language)

Revolution Analytics

Revolution Analytics: a 5-minute history

User Groups and R Awareness , May 19, 2016

MS CEO Satya Nadella proclaimed Microsoft loves Linux

　　　Revolution R Open 　　　　==> 　　　　Microsoft R Open

The Comprehensive R Archive Network

Microsoft R Application Network